#include <stdio.h>
int main()
{
   int max(intx,inty);
   int a,b,c;
   scanf("%d,%d",&a,&b);
   c=max(a,b);
   printf("max=%d\n",c);

    return 0;

}

int max(x,y)
{
    int z;
    if(x>y)z=x;
    if(x<y)z=y;
    return(z);



}

